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planetaire · 09-29-2014, 03:22 PM

Regen is really better than with only the nimh cells because two reasons:

-The total electrical resistance is then only 0.04 ohms because during driving the nimh are // with the A123 (Lifepo4). Usually nimh alone have 0.3 ohms (In summer).
-And you can charge all the cells. If the A123 are not fully charged you can charge several kWh during a slope. With the nimh only 0.4kWh for exemple.

So the nimh don't heat like previously and the A123 stay at a good temperature.
They don't need to be cooled (I don't live in a hot place)

In out of gas mode there is a third interesting reason,
because you can use the B mode at any speed without loosing power in the engine. I often use this so my mechanical brakes are often just for a final stop, less then 20 km/h. In B mode you can have twice the electrical braking power then in D mode. You can mix from D to B mode during braking. Maximum electrical braking (regen) is near 28kW.

(Converting a car from gas to electric is quite impossible here in France, because laws)

09-29-2014, 03:22 PM	#5 (permalink)
planetaire EcoModding Lurker Join Date: Feb 2010 Location: France Posts: 65 Planetaire - '07 Toyota Prius 2 plug in 90 day: 195.47 mpg (US) Thanks: 48 Thanked 95 Times in 37 Posts	Regen. Regen is really better than with only the nimh cells because two reasons: -The total electrical resistance is then only 0.04 ohms because during driving the nimh are // with the A123 (Lifepo4). Usually nimh alone have 0.3 ohms (In summer). -And you can charge all the cells. If the A123 are not fully charged you can charge several kWh during a slope. With the nimh only 0.4kWh for exemple. So the nimh don't heat like previously and the A123 stay at a good temperature. They don't need to be cooled (I don't live in a hot place) In out of gas mode there is a third interesting reason, because you can use the B mode at any speed without loosing power in the engine. I often use this so my mechanical brakes are often just for a final stop, less then 20 km/h. In B mode you can have twice the electrical braking power then in D mode. You can mix from D to B mode during braking. Maximum electrical braking (regen) is near 28kW. (Converting a car from gas to electric is quite impossible here in France, because laws)